EP 0607104 A1 19940720 - System for recovering solvents or solvent mixtures dissolved in air or in an inert gas.
Title (en)
System for recovering solvents or solvent mixtures dissolved in air or in an inert gas.
Title (de)
Vorrichtung zur Rückgewinnung von Lösungsmitteln oder Lösungsmittelmischungen gelöst in Luft oder in einem Edelgas.
Title (fr)
Système de récupération de solvants ou mélanges de solvant, dissous dans l'air ou dans un gaz inert.
Publication
Application
Priority
IT MI930053 A 19930115
Abstract (en)
A system for recovering solvents or solvent mixtures dissolved in air or in an inert gas, characterized in that the system comprises at least a drier-exchanger (6,7) into which there is produced a gas flow containing the solvents to be recovered. The drier-exchanger (6,7) performs a first cooling operation (8,8') on the gas flow, to a temperature included between -10 DEG C and -30 DEG C. The gas flow (14), at the output of the drier-exchanger (6,7), is introduced into a separating condenser (20), cooled by a liquid nitrogen evaporator (21). The gas flow (23), which has been cooled to a temperature from -80 DEG C to -150 DEG C, is subjected to the condensing of the solvent, which is conveyed to the outside and recovered, whereas the gas fluid, upon depuration, is again introduced into the dier-exchanger, for cooling (28,28') the latter. <IMAGE>
IPC 1-7
IPC 8 full level
B01D 5/00 (2006.01)
CPC (source: EP)
B01D 5/0036 (2013.01); B01D 5/0051 (2013.01); B01D 5/0084 (2013.01); B01D 5/0096 (2013.01)
Citation (search report)
- [X] DE 4022802 A1 19920123 - BOZOVIC MILORAD [DE]
- [X] US 2252739 A 19410819 - STOEVER HERMAN J
- [X] US 4249596 A 19810210 - BURK DON [US], et al
- [A] FR 1461079 A 19661210 - LUMMUS CO
Designated contracting state (EPC)
AT BE DE DK ES FR GB NL PT SE
DOCDB simple family (publication)
EP 0607104 A1 19940720; IT 1263743 B 19960827; IT MI930053 A0 19930115; IT MI930053 A1 19940715
DOCDB simple family (application)
EP 94830002 A 19940111; IT MI930053 A 19930115